Delhi Assembly elections are proceeding "smoothly" Delhi Chief Electoral Officer Ranbir Singh told NDTV this afternoon, adding that he was "optimistic" that more people will come out to vote as the day winds down. Delhi is voting in Assembly polls today but turnout has been poor, with 41.5 per cent recorded till 3 pm. This is around 10 per cent lower than levels recorded for the same time in 2015.

"The election is going smoothly. The morning was slow... maybe because it was cold (but) now the momentum has caught (on). I hope the voter turnout is better (towards the end of the day) They will come out and vote. I am very optimistic," Ranbir Singh, who cast his vote from the city's Jangpura area, said.

Mr Singh also reminded voters that booths would stay open till 6 pm and "we (polling officials) will ensure that everyone who comes to the booths will be able to cast their vote".

Nearly 2,700 polling stations with 13,000 booths were set up across Delhi and opened at 8 am.

However, voters appear reluctant to head to these booths; turnout has been below 2015 levels from the start, with 4.33 per cent at 9 am against 5.4 per cent for this time five years ago. The figure jumped to 16.36 per cent by 11 am but was still behind the 19.6 per cent recorded in the last election.

Leaders across party lines have posted messages urging voters to come out and exercise their franchise, with Prime Minister Narendra Modi and Delhi Chief Minister Arvind Kejriwal leading the way.

Mr Kejriwal, who cast his vote from the Civil Lines area at around 9 am, made a similar appeal earlier today. The Chief Minister repeated his appeal later in the day as turnout continued to be sluggish.

Election officials have done their part too, with messages sent to registered voters' mobile phones.

Low voter turnout is seen by many as being favourable towards the incumbent - in this case Mr Kejriwal's AAP (Aam Aadmi Party). That said the 2015 polls saw a record turnout of 67.12 per cent to re-elect the AAP after its short-lived first stint in power.

The AAP claimed 67 of the Assembly's 70 seats in 2015, leaving only three for the BJP. The Congress, which ruled the capital between 1998 and 2013, drew a blank.